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分數認識
Author:
lkkbmaths teachers 檔案儲存用
GeoGebra
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異分母分數減法
【案例】2018年全国1卷理科12题
錐體建築師
算柱 (兩位數)
兩位數加法
Discover Resources
三角函數圖解
面積與公式
小數（小四下）
圓內正方形夾小圓
GGB1
Copy of 分數與小數
Discover Topics
Right Triangles
Distributions
Tangent Function
LCM and GCD
Volume